A player who finishes the preseason still on the PUP list can then be placed on the regular-season PUP list. Such players must sit out the first six games their team plays. At that point, teams have a three-week window in which to allow the player to begin practicing; from the day the player begins practicing, teams have an additional three-week window in which to decide whether to activate the player to the 53-man roster. If either of those deadlines pass, the player must remain on the PUP list for the remainder of the season.